Method of transmitting and receiving coded speech
US5715362A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 4, 1994 |
| Grant date | Feb 3, 1998 |
| Priority date | — |
| Expiry date | Oct 4, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L19/06
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of transmitting and receiving coded speech, in which method samples are taken of a speech signal and reflection coefficients are calculated from these samples. In order to minimize the used transmission rate, characteristics of the reflection coefficients are compared with respective stored sound-specific characteristics of the reflection coefficients for the identification of the sounds, and identifiers of identified sounds are transmitted, speaker-specific characteristics are calculated for the reflection coefficients representing the same sound and stored in a memory, the calculated characteristics of the reflection coefficients representing said sound and stored in the memory are compared with the following characteristics of the reflection coefficients representing the same sound, and if the following characteristics of the reflection coefficients representing the same sound do not essentially differ from the characteristics of the reflection coefficients stored in the memory, differences between the characteristics of the reflection coefficients representing the same sound of the speaker and the characteristics of the reflection coefficients calculated from the previ…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.